Deer Valley’s bid for a perfect season ended with a very imperfect outing Friday night in Antioch.

The second-seeded and No. 2 ranked Wolverines, 11-1, mustered only 147 yards and committed six turnovers in a 26-0 defeat to 10th-seed and revenge-minded Pittsburg in a North Coast Section Division I quarterfinal game.

The Pirates, 8-4, defeated 35-33 at home by Deer Valley a month earlier, turned three of the miscues into touchdowns including the game’s pivotal play, a 99-yard interception return for score by do-everything standout Robert Jiles with 2:12 left in the third quarter.

Down 6-0, the Wolverines looked to take the lead but on 4th-and-4 from the 7, gimpy quarterback Kristoff Williams was inserted back into the game and threw a floater to the right corner.

The fleet Washington State-bound Jiles picked it off and sprinted untouched down the Deer Valley sideline to completely turn the tide.

“That was the most fun I’ve ever had running with a football,” Jiles said. “Coaches told me to watch the corner route and that’s what I did…Man, revenge is sweet.”

Williams, who keyed Deer Valley’s earlier win over Pittsburg with two long touchdowns, missed a first-round win over Newark Memorial because of the ankle sprain and then re-injured it just before the pivotal interception following his own remarkable 28-yard scramble.

He sat out seven plays while backup Mike Behr helped move the ball to the 7. But on fourth down and after a timeout, coach Rich Woods put Williams back in and Jiles made the move look bad.

“It looked like the play was open, but Kristoff just didn’t get it out there with enough zip,” Woods said. “It’s too bad he wasn’t 100 percent that’s the way it goes.”

Pittsburg junior quarterback Julius Mozee managed the game superbly and had touchdown runs of 8 and 1 yards in the fourth quarter. He also added a pretty 18-yard TD pass to Terrance Polk on the game’s first possession.

Teammates Breon Butler and Tracy Clark combined for 142 yards on 23 carries, but it was Pittsburg’s defense that really stepped up, recording its first shutout of the year against an offense that piled up 451 points on the season and 390 yards per game.

“We shut out an awesome offense,” Pittsburg coach Vic Galli said. “Giles stepped up and made that big play. He’s a dynamite player.”

It helped to have one of the state’s top 40 recruits, 6-foot, 205-pound safety Erick Dargan, back from a knee injury that kept him out for six weeks.

Dargan played sparingly last week in a 27-7 first-round win over San Ramon Valley, but Friday he patrolled the secondary all night.

He made a beautiful interception to thwart Deer Valley’s opening drive at the goal line, tipping the ball to himself on what looked to be an obvious overthrow.

“It feels to finally get back and make a contribution,” said Dargan, who said his knee was about 90 percent. “We’re putting it all together when it counts most.”

Said Jiles: “Having (Dargan) out there not only pumps me up but everyone else too.”

Woods said Williams missed 10 days from game or practice, returned Monday, but tweaked the ankle Tuesday. He practiced little the next two days.

“But you got to go with what got you here,” Woods said. “We just didn’t convert when we needed to. We turned it over three times in the red zone. Pittsburg is an excellent team and you can’t beat them doing that.

“It’s unfortunate we played like this with so much at stake. It was just one of those nights. But we’re 11-1 and we won the league championship. We have the league banner.”

In other Div. I play, Terron Ward rushed for 146 yards and two touchdowns on De La Salle’s first two plays from scrimmage in a 56-14 home win over Foothill-Pleasanton.

He scored on runs of 78 and 58 yards. According to the Contra Costa Times, he finished with 184 yards and De La Salle sacked Oregon State-bound quarterback Sean Mannion eight times.

Mannion, coming off a Northern California-record 582-yard performance versus James Logan, finished 25 of 41 for 256 yards and two TDs.

De La Salle now plays tonight’s Berkeley-Monte Vista winner in next week’s semifinal game. Pittsburg will take on tonight’s College Park-Washington (Fremont) winner.

More NCS play:

In Div. II quarterfinals, Ricky Sims broke a 14-14 tie in the fourth quarter with TD runs of 1 and 77 yards in the final 7:23 to lift top-seed and host Petaluma to a 28-14 win over Cardinal Newman…Casa Grande fell behind 14-0 but got four touchdown passes from highly-touted junior quarterback Nick Sherry to defeat visiting Las Lomas 42-20…In Div. III, Abraham Amiri rushed for 162 yards, had three touchdowns, a sack and a fumble recovery leading top seed Encinal to a 48-22 win over Fortuna.

Other playoff action:

Oakland Athletic League MVP Sione Tupouata rushed 33 times for 296 yards and two TDs leading Fremont to its first Silver Bowl and Oakland Section championship with an 18-6 win over Oakland Tech before 1,200 fans at Laney College. The 6-foot-4, 250-pounder also had 11 tackles on defense leading a team that came back from academic problems earlier in the year…In Central Coast Section Open play, defending champion Bellarmine, 10-1-1, held Serra, 6-6, to just 156 total yards and Kyle Olugbode rushed 21 times for 124 yards and two scores in a 20-10 semifinal win at San Jose City College…In Div. I, Cameron Hernandez fired a 29-yard pass to Jordan Lockett that set up a 1-yard TD sneak with 1:25 left to give Milpitas a 15-14 win over Piedmont Hills-San Jose… In Div. II, Colorado-bound quarterback Nick Hirschman threw for 268 yards and two touchdowns, both to Andrew Berg, who had five catches for 158 yards, leading top-seed Los Gatos to a 45-6 win over Aragon. Running back Cory McDowell added 140 yards rushing.